IN 1000kva transformer where the oil and winding temperature sensors is connected

0 Answers   Cushman Wakefield,

---

What are IP protections used for electrical panels, JB, equipments installed in explosive zones like Petrochemicals, Oil & gas

0 Answers  

---

generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

0 Answers  

---

Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?

0 Answers  

---

how to write program by ladder logic in case of PLC operation

3 Answers   Gridco, Sofcon,

---

---

Why are we not getting shock while touching a metal which is being welded?

1 Answers  

---

what is the diffrent between ups and inverter

2 Answers   ABB,

---

what is Distance protection & how did it work

2 Answers  

---

why dc supply is given to the field of alternator

9 Answers  

---

what is G.O.D.S. ?

2 Answers   RCE,

---

can anyone help me regarding bout Electrical designs and calculations .. which text book should i follow as i am a trainee engineer.Description of my work which is Electrical designs like cable sizing, lighting, lightning, Gensets sizing, motor sizing, transformer sizing, generator sizing, circuit breakers, PDB MCC PCC SLDB MLDB panels, Single line diagrams mainly, substation desings, cable routing and layouts, reactive power compensations, power factor improvement, voltage drop calculations, power generations, power transmission, power distributions all calculations.Please help me

3 Answers  

---

how mach PF mainten in DG

6 Answers   Siemens,

---